02-11-2017
Mathematics

contestada

Elimination
4x+5y=-15
-3x-2y=13

Respuesta :

Dreamer4102001 Dreamer4102001

04-11-2017

multiply the first equation by 3 and tge second by 4:
12x+15y=-45
-12x-8y=52
then add the equations:
0x+7y=7
7y=7
y=1
so 4x+5(1)=-15
4x+5=-15
4x=-20
x=-5

Answer Link

Otras preguntas

The equation for momentum is p = mv, where p is momentum, m is mass, and v is velocity. The units for momentum are kg•m/s. a. What is the momentum of an object

Pick a card from a regular 52-card deck and record the suit, then toss a coin and record heads or tails. Let A be the event a club or spade is picked from a reg

A uniform electric field stack \rightarrow Ei subscript I with rightwards arrow on top is present in the region between infinite parallel plane plates A and B a

What can you infer about the results of numerical models in 1966 for polar caps made of water ice?

WILL MARK BRAINLIEST! Which of the following is NOT considered a hazardous waste? A. bug spray B. fertilizer C. nail polish remover D. pesticides

Answer this question now

CA5-5 WRITING (Cash Flow Analysis) The partner in charge of the Kappeler Corporation audit comes by your desk and leaves a letter he has started to the CEO and

Please help me…I will mark you the brainliest to whoever gives the first answer

Propane (C3H3) is used in domestic cooking and heating. A typical home in Pennsylvania burns 750 gal of propane for heating over the course of a year. How many

What is the slope of these points: (0,14) and (2,10)? Explain nicely please.